Samsung Electronics Co., Ltd.

Dongyoung Song

Kichrl Park

Hoyoung Kim

Sangwoo Lee

Kyuik Cho

Kundong Kim

Gyeonghan Cha

Heeshin Kim

Chaeryung Kim

Jiun Jeong

Kiwoon Kim

Dongjun Park

Eunji Yong

Seungwan Jeon

An image sensor including an image signal processor and an operating method of the image sensor are provided. An image sensor may include a pixel array configured to convert a received optical signal into electrical signals, a readout circuit configured to analog-digital convert the electrical signals to generate image data, and an image signal processor configured to perform one-dimensional filtering in each of a first direction and a second direction on the image data to remove noise of the image data, the second direction being different than the first direction.

Image sensor including image signal processor and operating method of the image sensor

Methods of adjusting an image sensor may be provided. A test image of a test chart including an evaluation area may be obtained using the image sensor. The evaluation area may have a shape of a circle, wherein the evaluation area includes first through nth unit areas arranged in a rotational direction around the circle, and wherein each of the first through nth unit areas has a different level of brightness. A signal-to-noise ratio (SNR) may be calculated for each of the first through nunit areas based on the test image of the test chart. A setting of the image sensor may be adjusted based on calculating the signal-to-noise ratio for each of the first through nunit areas.

Methods for evaluating performance of image sensors and/or selecting settings of image sensors

An interface circuit including: a first transmission circuit outputting a first signal to a transmission line via first transfer pads; and a second transmission circuit outputting a second signal to the transmission line via second transfer pads, the first transmission circuit includes a first termination resistor block including a switch and a first termination resistor connected between the first transfer pads, the second transmission circuit includes a second termination resistor block including a switch and a second termination resistor connected between the second transfer pads, and when the first transmission circuit outputs the first signal, the second termination resistor block detects the first signal, and when the first transmission circuit is in a low-power operation mode, the second termination resistor block disconnects the second termination resistor, and when the first transmission circuit is in a high-speed data transfer mode, the second termination resistor block connects the second termination resistor.

Interface circuit for controlling output impedance of a transmission circuit and an image sensor including ihe same

Growing community of inventors

Suwon-si, South Korea

Dongyoung Song